Vosges Mountains web series. The Vosges Mountains are brimming with diverse, not-to-be-missed sites. Know-how is put on a pedestal at the crystal works of Baccarat, Saint Louis and Lalique. History buffs: don't miss World War I sites such as Hartmannswillerkopf. Notre-Dame du Haut Hill in Ronchamp, in the Southern Vosges Mountains, is a site filled with history, art and spirituality. Le Corbusier built the Unesco-listed Ronchamp Chapel here 1955, a must-see site in the Vosges Mountains.